linux-kernel - Re: [PATCH] powerpc/signal32: Fix erroneous SIGSEGV on RT signal return

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Message-Id: <161970488799.4033873.13546091065982026265.b4-ty@ellerman.id.au>
Date:   Fri, 30 Apr 2021 00:01:27 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Paul Mackerras <paulus@...ba.org>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/signal32: Fix erroneous SIGSEGV on RT signal return

On Fri, 23 Apr 2021 13:52:10 +0000 (UTC), Christophe Leroy wrote:
> Return of user_read_access_begin() is tested the wrong way,
> leading to a SIGSEGV when the user address is valid and likely
> an Oops when the user address is bad.
> 
> Fix the test.

Applied to powerpc/next.

[1/1] powerpc/signal32: Fix erroneous SIGSEGV on RT signal return
      https://git.kernel.org/powerpc/c/5256426247837feb8703625bda7fcfc824af04cf

cheers